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Title: Study of methacholine positivity in patients with chronic cough at Masih Daneshvari hospital, Tehran, 2007-08
Authors: Cheraghvandi, A.
Fadaizadeh, L.
Taheri, S.A.
Masjedi, M.R.
Issue Date: 2013
Language: English
Abstract: While airways reactivity is among the characteristics of asthma, is not considered a sufficient condition diagnostically and the methacholine challenge is a non-specific diagnostic aid in cases of chronic cough and reactive airways disease. The aim of this cross-sectional study was to determine the metacholine response positivity and diagnosis of asthma in patients with chronic cough presenting to a hospital in Tehran during 2007 and 2008. Of 101 patients with chronic cough [with no history of sinusitis, recent pulmonary infection, bronchitis, gasteroesophageal reflux or underlying pulmonary conditions], 51.5% showed reactive airways disease to the methacholine test, 40.6% were unreactive and 7.9% were indeterminate. A positive methacholine challenge test was positively correlated with new wheezing. Although the methacholine challenge test is not a primary test for evaluating chronic cough, if no other reason for chronic cough is found, it may be a guiding test for asthma
Description: 369 - 372
Keywords: Cough
Chronic Disease
Cross-Sectional Studies
Respiratory Sounds
Subject: Methacholine Chloride
ISSN: 1020-3397
Other Identifiers:
Appears in Collections:EMRO Journal Articles (EMHJ)

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